South African beats Michael Johnson's 17-year-old 400m world record for gold – The Denver Post
Rio 2016: Brilliant Wayde Van Niekerk smashes Michael Johnson's 400m world record - Rio Olympics 2016 (Australian Broadcasting Corporation)
Olympic champion Wayde van Niekerk tests positive for coronavirus | The Independent | The Independent
SportsCenter on Twitter | Allyson felix, Track and field athlete, Olympic medals
/cdn.vox-cdn.com/uploads/chorus_image/image/50436677/usa-today-9473048.0.jpg "Rio 2016: United States' Kerron Clement wins gold in men's 400m hurdles - SBNation.com")
Rio 2016: United States' Kerron Clement wins gold in men's 400m hurdles - SBNation.com
Japan's 2016 Olympic Medal Winners (Photo Gallery) | Nippon.com
Wayde van Niekerk - Olympic 400m Champion | Real Life Stories
Wayde van Niekerk's 'massacre'; Britain's golden day: Olympics roundup - The National
Rio 2016: Brilliant Wayde Van Niekerk smashes Michael Johnson's 400m world record - Rio Olympics 2016 (Australian Broadcasting Corporation)
Report: men's 400m semi-finals – Rio 2016 Olympic Games| News
Shaunae Miller's dive denies Allyson Felix 400m gold in dramatic final | Sport | The Guardian
Wayde van Niekerk breaks world 400m record for Olympic gold - AW
Report: men's 400m final – Rio 2016 Olympic Games| News
![Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube](https://i.ytimg.com/vi/_h7gFkvHqTU/maxresdefault.jpg "Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube")
Kirani James [GRN] - Men's 400m | Champions of London 2012 - YouTube
Rio Olympics 2016: Wayde van Niekerk breaks world record to win Olympic gold - BBC Sport
400 metres at the Olympics - Wikipedia
Swimming at the 2016 Summer Olympics – Women's 400 metre individual medley - Wikipedia
Allyson Felix - Wikipedia
Olympic Track and Field 2016: Women's 400M Medal Winners, Times and Results | Bleacher Report | Latest News, Videos and Highlights
Shaunae Miller dives to beat Allyson Felix in 400m final at Rio Olympics - CNN
Rio Olympics 2016: Wayde van Niekerk breaks world record to win Olympic gold - BBC Sport
Watch every U.S. track and field gold medal from the 2016 Olympics | NBC Olympics
EWNSPORTINGMOMENTS: How Wayde van Niekerk shook the world
2008 Olympic Champion LaShawn Merritt Returns To 400-Meter Podium, Earns Bronze
